Sekonic 401-346 Illuminometer ONLY SEKONIC METERS THAT ARE SHIPPED BY AND SOLD BY AMAZON.COM OR OTHER AUTHORIZED SEKONIC DEALERS CAN ENSURE THAT YOU ARE RECEIVING GOODS THAT HAVE PROPER FCC COMMUNICATION AND ARE COVERED BY A USA WARRANTY.THE AMAZON OFFER MAY BE SEEN TO THE RIGHT. GREY MARKET SEKONIC METERS WILL NOT APPLICABLE FOR A US WARRANTY. Measurement range: 2.50 lx to 200,000 lx; 0.23 fc to 18,600 fc Display: Lux(lx), Foot-candle (fc); Significant digits: 3 digits; UNDER/OVER range warning; Batter power indicator Automatic power OFF (About 4 minutes after last operation) 32 to 104F (0C - 40C) AA battery 1.5V x 1 (Alkaline, manganese, lithium, NiMH)